Pulse Compression of Nd:YAG Laser with Stimulated Brillouin Scattering for Compton Backscattered X‐ray Source
Pulse Compression of Nd:YAG Laser with Stimulated Brillouin Scattering for Compton Backscattered X‐ray Source
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DOI：
10.1063/1.3204529
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发表时间：
2009-07
期刊：
影响因子：
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通讯作者：
K. Kawase;T. Shimomura;M. Kando;H. Yoshida;S. V. Bulanov
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文献类型：
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作者：
K. Kawase;T. Shimomura;M. Kando;H. Yoshida;S. V. Bulanov
康普顿背散射X射线源是日本原子能机构关西光子科学研究所(KPSI-JAEA)在几百keV能量范围内研制的。康普顿背散射X射线源的一个显着特点是产生的X射线束准直良好，具有一定的偏振特性。KPSI-JAEA的康普顿背散射X射线源由脉冲宽度为24ps的150 MeV电子束和脉冲宽度为23 ns的激光组成。在X射线产生的第一次试验中，X射线通量不足以实际使用。作为一种实际的X射线源，尽可能增加产生的X射线通量是很重要的。因此，为了提高X射线通量，我们研制了受激布里渊散射(SBS)脉冲压缩系统。受激布里渊散射脉冲压缩具有转换效率高、结构简单等特点。在这篇文章中，我们描述了KPSI-JAEA康普顿背散射X射线源的SBS脉冲压缩的现状。
Compton backscattered x‐ray source is developed in the energy region of a few hundred keV at Kansai Photon Science Institute of Japan Atomic Energy Agency (KPSI‐JAEA). A remarkable feature of the Compton backscattered x‐ray source is that the generated x‐ray beam is a well‐collimated and has a definite polarization property. The Compton backscattered x‐ray source at KPSI‐JAEA consists of the 150‐MeV electron beam with the pulse duration of 24 ps accelerated by Microtron accelerator and a Nd:YAG laser with the pulse duration of 23 ns. At the first trial of the X‐ray generation, the x‐ray flux is not enough for actual use. As an actual x‐ray source, it is important to increase the generated x‐ray flux as much as possible. Thus, in order to increase the x‐ray flux, we develop the pulse compression system for the Nd:YAG laser through the stimulated Brillouin scattering (SBS). The SBS pulse compression is characterized by its high conversion efficiency and by its simplicity of construction. On this article, we describe the present status of the SBS pulse compression for the Compton backscattered x‐ray source at KPSI‐JAEA.